Complete the task prompted by the "Transcendence" trophy, which is to acquire all Scarf upgrades hidden in the game. You can do this over multiple playthroughs. Once you acquire the trophy, head to the start of the game (or just pause the game and select "Chapter Select". This option is unlocked after completing the game once). From the center of the area, look to the right and you will see three large cloths sticking out from the ground. Go over to them and simply walk into them. Your cloak will now be white and the scarf you start off with will be longer. Unlike the red scarf, the white scarf will automatically regenerate scarf power once you land after jumping.